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Convert MP4 to WEBA

Extract the audio from MP4 videos and save it as WEBA — ideal for web recordings and browser audio.

  • No upload — 100% private
  • Fast, lossless when possible
  • Free & unlimited
  • Works on iPhone & Android

    Quality
    Advanced options
    Trim (optional)
    Use minutes:seconds, e.g. 1:05.5

    How to convert MP4 to WEBA

    1. 1

      Tap Choose files and select one or more MP4 files (or drag them in).

    2. 2

      Check that WEBA is selected. Use Advanced options for bitrate, channels or trimming.

    3. 3

      Press Convert. Everything happens on your device — no upload, no waiting in a queue.

    4. 4

      Your WEBA downloads automatically. Converting several files? Grab them all as a ZIP.

    MP4 vs WEBA

    Only the sound is kept — the picture is dropped, so the WEBA file is far smaller than the MP4 video.

    MP4WEBA
    Full nameMPEG-4 Part 14WebM Audio
    TypeVideoAudio
    CompressionLossyLossy
    Developed byMPEGGoogle
    Introduced20012010
    Plays on iPhone✓ Yes◐ Partly / with an app
    Plays on Android✓ Yes✓ Yes
    Plays on Windows✓ Yes✓ Yes
    Plays on Mac✓ Yes◐ Partly / with an app

    About MP4 and WEBA

    MP4: MP4 is the universal video format. With H.264 video and AAC audio it plays on every iPhone, Android phone, smart TV, browser, WhatsApp, Instagram and YouTube.

    WEBA: WEBA is an audio-only WebM file, usually containing Opus. Browsers create it when you record sound on a website.

    Frequently asked questions

    How do I convert MP4 to WEBA on my phone?
    Open this page in your phone's browser (Safari, Chrome, Samsung Internet), tap Choose files, pick your MP4, make sure WEBA is selected and tap Convert. The WEBA file is saved to your Downloads.
    Will converting MP4 to WEBA reduce quality?
    Only the sound is kept — the picture is dropped, so the WEBA file is far smaller than the MP4 video.
    Can I convert only part of the MP4?
    Yes. Open Advanced options → Trim and enter a start and end time.
    Is this MP4 to WEBA converter free?
    Yes — completely free with no limits on the number of files, no watermark and no account. The site is supported by ads.
    Are my files uploaded to a server?
    No. The converter runs inside your browser using WebAssembly, so your files never leave your device. That's also why it works for private and confidential recordings.

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